jalur_ka_list_rail_lines
AI agents call jalur_ka_list_rail_lines to retrieve information from MCP Transportasi - Jalan Tol & Jalur KA without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name suggests listing railway lines (a retrieval operation). The entire server is dedicated to querying transportation infrastructure, and all related tools perform read-only queries. While the description is empty and reduces confidence slightly, the name, purpose, and sibling tools all point unambiguously to a Read operation with no destructive, financial, or execution capability.
From the tool's definition Tool name 'jalur_ka_list_rail_lines' indicates a list operation; no description provided, but all sibling tools are read-only queries (find_nearest, get_detail, list, get_active_lines).
Attacks that exploit this kind of access
jalur_ka_list_rail_lines. It is categorised as a Read tool in the MCP Transportasi - Jalan Tol & Jalur KA MCP Server, which means it retrieves data without modifying state.
Register the MCP Transportasi - Jalan Tol & Jalur KA MCP server in PolicyLayer and add a rule for jalur_ka_list_rail_lines: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches MCP Transportasi - Jalan Tol & Jalur KA. Nothing to install.
jalur_ka_list_rail_lines is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the jalur_ka_list_rail_lines rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for jalur_ka_list_rail_lines. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
jalur_ka_list_rail_lines is provided by the MCP Transportasi - Jalan Tol & Jalur KA MCP server (tirthanzh/mcp-transportasi-jalan-tol-dan-jalur-ka). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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